What's the grip shape (Wilson/Dunlop) and the replacement grip (leather or synthetic) ??

P.S As my location is saying I'm not in the UK...but I can probably have them shipped to a friend in Scotland if it's a must. I would prefer to not bother him though...even if it costs more to ship directly.

Also...I would appreciate the ACTUAL specs, rather than the target specs.
Cheers.